Interesting, I did not have good memories of this series. I had power supply failures, disk controller failures, processors dying. I had a matched pair of these running windows server 2003 r2 in a cluster to handle arcserv ha backups. I don't think very highly of the 580/585 series, especially since I've seen (and used) some of the 1u twin systems, which have more than enough horsepower to make these completely obsolete. Unfortunately, a waste of space in my datacenter.